Your problem today was an issue with the Dish uplink to two satellites.
The whole country was affected.
In my 4.5 years with Dish, this is the first time I've seen anything like that.
Oh, -today- !! I was gone all day.
I was going to say that in about three years, the only time I've had reduced signal problems, I've gone out and trimmed a tree that is growing toward my dish, and the problem was solved.
Oh okay, once I had a bad connector.
As for weather, "clear and sunny" doesn't hurt satellite reception.
However, . . . Dish does sometimes have a bad habit of installing what I would consider a marginal antenna for some users.
The pacific north west needs a big dish for 129, for instance.
I think the Dish 1000 antenna family is a poor compromise for some areas.
There are other examples.
But otherwise, the service is really solid for the rest of us.